DeWalt DCS391
DeWalt DCS391 — Review & Rating 2026
The DeWalt DCS391 is the most powerful 18V cordless circular saw in the test. For anyone who regularly saws hard materials like concrete and thick beams, DeWalt is the right choice. We tested it thoroughly.
Our rating
Performance95/100
Cutting depth82/100
Battery life80/100
Ergonomics75/100
Value for money72/100
82/ 100 total
Technical data
| Model | DeWalt DCS391 |
| Blade diameter | 165 mm |
| Cutting depth 90° | 55 mm |
| Cutting depth 45° | 42 mm |
| Speed | 3,700 rpm |
| Weight | 3.2 kg (without battery) |
| Motor | Brushless |
| Voltage | 18V XR |
| Scope of delivery | Bare tool or with battery set |
Strengths
- ✓Highest performance in the test
- ✓Electronic brake for more safety
- ✓Cutting depth 55mm at 90°, 42mm at 45°
- ✓Overload protection protects motor and battery
- ✓Compatible with the entire DeWalt XR system
- ✓Extremely rugged build for continuous use
Weaknesses
- ✕Heaviest model in the test — 3.2 kg
- ✕Highest price in the comparison
- ✕Only conditionally suited for left-handed users
Who is the DeWalt DCS391 for?
- ✓Professionals who saw hard materials daily
- ✓Ambitious DIYers who need maximum power
- ✓DeWalt system users who already own DeWalt XR batteries
Conclusion
The DeWalt DCS391 is the right choice for anyone who needs maximum performance. The higher weight and higher price are justified — anyone who regularly saws hard materials will appreciate the power. For the average DIYer, the Makita DHS680 offers the better overall package.
Prices & buying options
DeWalt DCS391
Most power in the test — electronic brake, overload protection, extremely rugged build for continuous use.